package com.api.main.config;

/**
 * @auther zhangwj
 * @date 2020/7/27 10:45 上午
 */
public class DataConfig {

    private static DataConfig instance = null;

    private DataConfig() {
    }

    public static DataConfig getInstance() {
        if (null == instance) {
            instance = new DataConfig();
            System.out.println(instance.hashCode());
        }
        return instance;
    }

}
